Profile URL: https://hdl.handle.net/20.500.13091/11690
Job Title:Doç. Dr.
Email Address:bhaspulat@ktun.edu.tr
Main Affiliation:02.01. Department of Chemical Engineering
Status: Current Staff
ORCID:
0000-0002-5170-322X
0000-0002-5170-322XScopus ID:
55781912200
55781912200YÖK Akademik: D0851B6A32432E21
Google Scholar:
ZFgEGJ4AAAAJ
ZFgEGJ4AAAAJWeb of Science ID:
AAG-5188-2019
AAG-5188-2019Name Variants:
Haspulat Taymaz, B.
25 results
Scholarly Output Search Results
Now showing 1 - 10 of 25
Article Citation - WoS: 2Citation - Scopus: 2Lightweight and Sustainable Recycled Cellulose Based Hybrid Aerogels With Enhanced Electromagnetic Interference Shielding(Springer, 2025-03-01) Taymaz, Bircan Haspulat; Eskizeybek, Volkan; Haspulat Taymaz, BircanDeveloping lightweight, sustainable, high porosity, and high-performance electromagnetic interference (EMI) shielding apparatus is essential to diminish electromagnetic contamination for protecting human health and electronic devices. Herein, 1D carbon nanotubes (CNTs) and 2D graphene nanoplatelets (GNPs) functionalized recycled cellulose aerogel (RCA) were fabricated via a facile method by freeze, solvent exchange, and ambient drying. The effect of nanofiller type and quantity on the structural, morphological, electrical, thermal and EMI shielding performance of the RC-based aerogel were investigated. The as-prepared hybrid aerogel displays the maximum 40.2 dB electromagnetic interference shielding efficiency (SE) at 8.92 dB GHz with absorption dominant characteristic. CNTs:GNPs nanofillers in recycled cellulose matrix provoked conductivity mismatching and increased interfacial polarization loss. At a density of 0.087 gcm-3, CNTs:GNPs; 7:7%wt. doped RCA exhibits a highly specific SE (SSE) value of 461.95 dBcm3g-1 and an absolute SE (SSE/t) value of 2309.29 dBcm2g-1. These results show that the CNTs:GNPs; 7:7%wt. doped RCA can meet practical applications' lightweight and high-efficiency EMI shielding requirements.Other Aloe Vera Extract-Assisted Hydrothermal Synthesis of CuO Nanoparticles for Photocatalytic Degradation of Methylene Blue Dye(2024) Kamış, Handan; Özler, Ayşenur; Taymaz, Bircan Haspulat; Yaman, Rıza Turgut; Akıllı, AleynaArticle Citation - WoS: 36Citation - Scopus: 39Photocatalytic Activity of Polyaniline and Neutral Polyaniline for Degradation of Methylene Blue and Malachite Green Dyes Under Uv Light(SPRINGER, 2021-04-06) Haspulat Taymaz, Bircan; Taş, Recep; Kamış, Handan; Can, MuzafferA polyaniline (PANI) and neutral Polyaniline (NPANI) have been synthesized in acetonitrile-water mixture via the chemical oxidative polymerization of aniline. Scanning electron microscopy, FTIR spectra, UV-vis spectroscopy measurements were used to characterize the resulting PANI and NPANI. The photocatalytic activities of PANI and NPANI were investigated by the degradation of methylene blue (MB) and malachite green (MG) dyes in aqueous medium under UV light irradiation. MB and MG dyes completely degraded under UV light irradiation in the presence of NPANI after 60 and 75 min, respectively. The effect of dye type, irradiation time, dye concentration and photocatalyst amount on photocatalytic performance of PANI and NPANI have been examined under UV light irradiation. Three kinetic models have proposed for photocatalytic degradation of dyes by using PANI and NPANI under UV light illumination. This work explores the easy way to synthesize efficient PANI and NPANI polymers to degrade organic compound under both UV and visible light irradiations.Article Citation - WoS: 4Citation - Scopus: 4Synthesis of New Azobenzo[c]cinnolines and Investigation of Electronic Spectra and Spectroelectrochemical Behaviours(PERGAMON-ELSEVIER SCIENCE LTD, 2021) Nalcıoğlu, Öznur Ölmez; Kılıç, Emine; Haspulat Taymaz, Bircan; Kamış, Handan; Taymaz, Bircan HaspulatA series of disazobenzo[c]cinnoline dyes was prepared by coupling reaction of 3,8-dihydroxybenzo[c]cinnoline with diazotised aromatic amines. The structures of these dyes were confirmed using UV-Vis, FTIR, H-1 NMR, LC-MS/MS and LC-MS/TOF spectroscopic techniques. C-13 NMR, C-13-DEPT, H-1-H-1 COSY, H-1-C-13 HMQC and H-1-C-1(3) HMBC spectra of dye 12 were demonstrated in this study. In addition, the effects of the substituent attached to the phenyl ring, solvent and acid-base on the UV-Vis spectra of the dyes were investigated. Besides, voltammetric and spectroelectrochemical behaviours of four disazobenzo[c]cinnolines (2, 8, 11 and 13) in acetonitrile (ACN) solution were also evaluated. It was observed that the disazobenzo[c]cinnoline derivatives indicated reversible voltammetric behaviour in acetonitrile-tetrabutylammonium perchlorate (ACN-TBAP) solution. A square-wave potential step method coupled with optical spectroscopy was used to probe switching times and optic contrast of the dyes. (C) 2021 Elsevier B.V. All rights reserved.Article Citation - WoS: 3Citation - Scopus: 3Pani/Coo Nanocomposite Films With Excellent Photocatalytic Performance for Real Textile Wastewater Treatment(Springer Int Publ Ag, 2023-08-01) Haspulat Taymaz, Bircan; Eskizeybek, Volkan; Kamış, HandanTextile wastewater becomes the primary root of environmental pollution due to the rapid infection rates of freshwater, subsurface water, soil, and air. Due to the high absorption abilities of UV and visible light, polymer nanocomposite photocatalyst films (PNPFs) are recognized as potential candidates for textile wastewater treatment. Here, we developed novel cobalt monoxide (CoO)/polyaniline (PANI) PNPFs with high photocatalytic efficiency and stability. The photocatalytic efficiencies of PANI/CoO films were estimated utilizing the degradation of organic dyes and real-textile wastewater (RTW) under various lighting conditions. PANI/CoO PNPF completely decomposed methylene blue and RTW samples in 30 and 45 min under UV light illumination, respectively. We found that the CoO nanoparticles doubled the PANI's photocatalytic decomposition rate. However, under visible light irradiation, their photocatalytic efficiencies almost halved. Moreover, PANI/CoO PNPF exhibited excellent photocatalytic stability by maintaining the photocatalytic performance for up to five cycles with over 95% removal efficiency. This study yielded an efficient and alternative polymer nanocomposite to decompose wastewater sources contaminated with various textile dyes and may be examined for industrial-scale applications in the future.Article Citation - WoS: 2Citation - Scopus: 2Gan/Zno Hybrid Nanostructures for Improved Photocatalytic Performance: One-Step Synthesis(Scientific And Technological Research Council Turkey, 2023) Üstün, Tugay; Haspulat Taymaz, Bircan; Eskizeybek, Volkan; Kamış, Handan; Avcı, Ahmet; Taymaz, Bircan HaspulatNanostructured semiconductor materials are considered potential candidates for the degradation of textile wastewater via the photocatalytic process. This study aims to produce hexagonal gallium nitride (GaN) nanoplates and zinc oxide (ZnO) nanoparticles in a deionized water environment utilizing a one-step arc discharge process. Detailed characterization of samples has been completed via scanning electron microscope (SEM), transmission electron microscope (TEM), X-ray diffraction (XRD), Fourier transform infrared spectroscopy (FTIR), and UV visible spectroscopy methods. The hybrid nanostructure morphologies consist of nanoplates and nanorods of different sizes. The photoperformance of GaN/ZnO hybrid nanostructures was assessed via the malachite green (MG) dye degradation under UV exposure. Under UV exposure, the degradation yield reached 98% in 60 min. Compared to individual ZnO and GaN nanoparticles, the photocatalytic reaction rate of the GaN/ZnO photocatalyst is 2.2 and 3.6 times faster, respectively. Besides, the GaN/ZnO hybrid nanostructures show excellent photocatalytic stability. The energy consumption of the photocatalytic degradation in the presence of GaN/ZnO hybrid nanostructures was 1.688 kWhL-1. These results demonstrate that the GaN/ZnO hybrid nanostructures with improved photocatalytic activity are a reasonable option for the decomposition of textile wastewater under UV light exposure.Article In Situ Synthesized Free-Standing Ti3C2Tx MXene/PDAAQ Nanocomposite Films for Adsorption-Assisted Photocatalytic Removal of Methylene Blue and Malachite Green Dyes(Springer, 2026) Ak, Halime; Akıllı Samur, Aleyna; Özler, Ayşenur; Haspulat Taymaz, Bircan; Eskizeybek, Volkan; Kamış, HandanThe increasing contamination of water resources by organic pollutants has become a critical environmental concern due to their persistence, toxicity, and resistance to conventional treatment methods. Photocatalysis has emerged as a promising approach for wastewater remediation; however, conventional powder-based photocatalysts suffer from significant limitations, especially the difficulty of post-treatment separation from the reaction medium. This not only complicates the recovery process but also increases operational costs and limits their practical applicability. To address these issues, a freestanding Ti3C2Tx (MXene)/PDAAQ nanocomposite film was successfully synthesized via in situ oxidative polymerization of poly(1,5-diaminoanthraquinone) (PDAAQ) within MXene layers. The integration of PDAAQ effectively expanded the interlayer spacing from 1.23 to 1.51 nm, suppressing restacking and facilitating improved charge separation. Optical studies revealed band-gap energies of 2.63 and 1.85 eV for MXene and the composite, respectively. Electrochemical impedance spectroscopy revealed that the charge-transfer resistance decreased from 3 ohm for pristine MXene to 1.6 ohm in the dark and further to 0.5 ohm under illumination for the composite. As a result, the MXene/PDAAQ nanocomposite exhibited superior photocatalytic performance, achieving 100% degradation of methylene blue (MB) within 20 min at pH 11 and complete degradation of malachite green (MG) within 35 min at pH 7. Kinetic analysis based on the pseudo-first-order model revealed higher apparent rate constants for the composite. The equilibrium adsorption behavior was well fitted by the Freundlich isotherm model (R2 = 0.99), with a maximum adsorption capacity of 12.375 mg g-1. The freestanding photocatalyst retained approximately 90% of its initial degradation efficiency after five consecutive cycles. TOC and phytotoxicity analyses further confirmed substantial mineralization and significant toxicity reduction following photocatalytic treatment.Article Citation - WoS: 3Citation - Scopus: 4Magnetic and Visible Light-Induced Novel Green Synthesized Magnetic Co3o4 Photocatalysts Via Sunflower Seed Meal Extract for Anionic and Cationic Dye Removal by Adsorption Assisted Photocatalytic Degradation(Taylor and Francis Ltd., 2024-10-18) Akıllı, A.; Haspulat, Taymaz, B.; Özler, A.; Ak, H.; Hancı, A.; Kamış, H.; Taymaz, Bircan Haspulat; Haspulat Taymaz, BircanThis study was aimed at the preparation of m-Co3O4 NPs (magnetic Co3O4 nanoparticles) from sunflower seed meal (SFSM) which is the waste of sunflower seed oil factories, and their application as a photocatalyst for the adsorption assistant photocatalysis degradation of methylene blue (MB), and direct yellow-50 (DY-50) under the visible irradiations. Also, the photocatalytic performance of m-Co3O4 NPs was evaluated in synthetic wastewater. The produced m-Co3O4 NPs were ferromagnetic with a saturation magnetization value of 4.3 emu g−1 and the degradation of cationic MB and anionic DY-50 dyes by 100% and 93% in 20 min and 35 min, respectively, by adsorption-assisted photocatalytic process under visible light was achieved. The reactions were found to be pseudo-second-order equation for the adsorption-assisted photocatalytic process for both dyes. The photocatalytic activity of m-Co3O4 NPs decreased slightly even after five repeated cycles. These results show that the m-Co3O4 NPs can be used successfully in dye treatment in wastewater with their adsorption-assisted photocatalytic properties, activation by visible light, magnetic separability, and low-cost production. © 2024 Taylor & Francis Group, LLC.Article Citation - WoS: 3Citation - Scopus: 3Enhancing Structural Health Monitoring of Fiber-Reinforced Polymer Composites Using Piezoresistive Ti3c2tx Mxene Fibers(Nature Research, 2025) Taymaz, B.H.; Kamış, H.; Dziendzikowski, M.; Kowalczyk, K.; Dragan, K.; Eskizeybek, V.The anisotropic behavior of fiber-reinforced polymer composites, coupled with their susceptibility to various failure modes, poses challenges for their structural health monitoring (SHM) during service life. To address this, non-destructive testing techniques have been employed, but they often suffer from drawbacks such as high costs and suboptimal resolutions. Moreover, routine inspections fail to disclose incidents or failures occurring between successive assessments. As a result, there is a growing emphasis on SHM methods that enable continuous monitoring without grounding the aircraft. Our research focuses on advancing aerospace SHM through the utilization of piezoresistive MXene fibers. MXene, characterized by its 2D nanofiber architecture and exceptional properties, offers unique advantages for strain sensing applications. We successfully fabricate piezoresistive MXene fibers using wet spinning and integrate them into carbon fiber-reinforced epoxy laminates for in-situ strain sensing. Unlike previous studies focused on high strain levels, we adjust the strain levels to be comparable to those encountered in practical aerospace applications. Our results demonstrate remarkable sensitivity of MXene fibers within low strain ranges, with a maximum sensitivity of 0.9 at 0.13% strain. Additionally, MXene fibers exhibited high reliability for repetitive tensile deformations and low-velocity impact loading scenarios. This research contributes to the development of self-sensing composites, offering enhanced capabilities for early detection of damage and defects in aerospace structures, thereby improving safety and reducing maintenance expenses. © The Author(s) 2025.Conference Object Tekstil Endüstrisi Atık Sularının Fotokatalitik Olarak Giderimi için Popd/ag Film Fotokatalizörünün Sentezi(UNIKOP, 2022) Haspulat Taymaz, BircanEndüstriyel kaynaklı atık sular artılmadan alıcı ortama deşarj edildiğinde hava, su ve toprağın kirlenmesine neden olmaktadır. Bu nedenle atık suların alıcı ortama salınmadan önce mutlaka arıtılması gerekmektedir. Tekstil endüstrisi, alıcı ortama fazla miktarda toksik, renkli ve konserojenik maddeler içeren atık su salan bir endüstri koludur. Tekstil endüstrisi atık sularının renginin giderilmesinde fotokatalitik bozunma prosesleri son zamanlarda en çok tercih edilen yöntemlerden biridir. Fotokataliz bir yarıiletkenin bant boşluğuna uygun bir ışık kaynağı ile uyarılması ile oluşan reaktif türler yardımıyla zararlı organik yapılarının zararsız su, karbon dioksit ve mineral tuzlara dönüştürülmesidir. Film fotokatalizörler fotokatalitik bozunma tamamlandıktan sonra kolaylıkla alıcı ortamdan ayrılabildiği için tekrar kullanım kolaylığı sağlamaktır. Bu amaçla bu çalışmada görünür ışık ile uyarılabilen, fotokatalitik performansı yüksek, tekrar kullanılabilen film fotokatalizörlerinin geliştirilmesi amaçlanmıştır. Tekstil endüstrisi atık sularının fotokatalitik olarak giderilmesi için elektrokimyasal yöntemle Ag katkılanmış poli(orto-fenilendiamin) (POPD/Ag) kalem ucu elektrot üzerine sentezlenmiştir. Bu amaçla belirli miktarda AgNO3 ve orto-fenilendiamin monerini içeren sulu çözelti hazırlanmıştır. Polimerizasyon çalışma elektrodu olarak kalem ucu gratif, karşıt elektrot olarak Pt tel ve referans elektrot olarak Ag tel kullanılan üç elektrotlu elektrokimyasal hücrede gerçekleştirilmiştir. POPD/Ag filminin morfolojik, spektroskopik ve optik karakterizasyonu için sırasıyla taramalı elektron mikroskopu, Fourier dönüşümlü infrared spektroskopisi ve UV görünür bölge absorpsiyon spektroskopisi kullanılmıştır. Karakterizasyonu tamamlanan POPD/Ag filminin fotokatalitik performansı model boya olarak seçilen malahit yeşilinin (MY) görünür ışık altında renginin giderilmesi amacıyla incelenmiştir. MY boyası görünür ışık altında 50 dk sonunda rengi tamamen giderilmiştir. MY boyasının renginin fotokatalitik olarak giderilmesine Ag katkılama oranının, boya derişiminin etkisi incelenmiştir. Ag katkılamanın fotokatalitik aktiviteye etkisinin kıyaslanması amacıyla tüm fotokatalitik performans çalışmaları saf POPD filmi ile aynı koşullar altında tekrarlanmıştır. Fotokatalik reaksiyon hız sabitleri, reaksiyonun birinci dereceden olduğu kabul edilerek hesaplanmıştır. Ayrıca üretilen POPD/Ag film fotokatalizörünün MY boyasının giderilmesindeki fotokatalitik kararlılığının incelenmesi amacıyla tekrar kullanım çalışmaları tamamlanmıştır. Beşinci kullanımda dahi POPD/Ag film fotokatalizörü performansını korumuştur. Bütün sonuçlar değerlendirildiğinde görünür ışık altında aktifleşebilen, organik boyaların fotokatalitik olarak giderilmesinde yüksek performansa sahip tekrar kullanılabilen film fotokatalizör başarılı bir şekilde üretilmiştir.
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Research Topics
Domains
Physical Sciences
Fields
EnergyMaterials ScienceEngineering
Subfields
Renewable Energy, Sustainability and the EnvironmentPolymers and PlasticsMaterials ChemistryElectrical and Electronic Engineering
Specific Research Areas
Advanced Photocatalysis Techniques
Conducting polymers and applications
TiO2 Photocatalysis and Solar Cells
ZnO doping and properties
Electrochemical sensors and biosensors
MXene and MAX Phase Materials
Sustainable Development Goals
6CLEAN WATER AND SANITATION
10
Research Products
9INDUSTRY, INNOVATION AND INFRASTRUCTURE
6
Research Products
7AFFORDABLE AND CLEAN ENERGY
2
Research Products
14LIFE BELOW WATER
2
Research Products
11SUSTAINABLE CITIES AND COMMUNITIES
1
Research Products
Documents
23
Citations
554
h-index
11
Documents
23
Citations
500
Publication Collaboration
| Affiliation Name | Count |
|---|---|
| Konya Technical University | 20 |
| Çanakkale Onsekiz Mart Üniversitesi | 13 |
| Selçuk University | 6 |
| Osmaniye Korkut Ata University | 2 |
| University Frères Mentouri Constantine 1 | 1 |
1 / 4
Data obtained from OpenAlex
| Journal | Count |
|---|---|
| Journal of Inorganic and Organometallic Polymers and Materials | 2 |
| International Journal of Phytoremediation | 2 |
| Turkish Journal of Chemistry | 2 |
| Research Square | 2 |
| Environmental Engineering Research | 1 |
Current Page: 1 / 4
Scholarly Output
25
Articles
20
Views / Downloads
65/73
Supervised MSc Theses
0
Supervised PhD Theses
0
WoS Citation Count
177
Scopus Citation Count
195
Patents
0
Projects
0
WoS Citations per Publication
7.08
Scopus Citations per Publication
7.80
Open Access Source
11
Supervised Theses
0
Scopus Quartile Distribution
Competency Cloud
