文献类型：期刊文献

英文题名：Visible light-driven photocatalytic H2 evolution and dye degradation by electrostatic self-assembly of CdS nanowires on Nb2C MXene

作者：Tayyab, Muhammad[1];Kulsoom, Umm E.[3];Liu, Yujie[1];Mansoor, Seemal[1];Khan, Mazhar[1];Akmal, Zeeshan[1];Mushtaq, Asim[4];Arif, Muhammad[5];Shamriaz, Umair[6];Zhou, Liang[2,7];Lei, Juying[2,7];Zhang, Jinlong[1]

机构：[1]East China Univ Sci & Technol, Sch Chem & Mol Engn, Feringa Nobel Prize Scientist Joint Res Ctr, Key Lab Adv Mat & Joint Int Res Lab Precis Chem &, Shanghai 200237, Peoples R China;[2]East China Univ Sci & Technol, State Key Lab Bioreactor Engn, 130 Meilong Rd, Shanghai 200237, Peoples R China;[3]Univ Gujrat, Dept Law, Gujrat 50700, Pakistan;[4]Zhejiang Sci Tech Univ, Inst Smart Biomed Mat, Sch Mat Sci & Engn, Hangzhou 310018, Peoples R China;[5]Changzhou Univ, Adv Catalysis & Green Mfg Collaborat Innovat Ctr, Key Lab Adv Catalyt Mat & Technol, Changzhou 213164, Jiangsu, Peoples R China;[6]Tech Univ Darmstadt, Dept Chem, D-64287 Darmstadt, Germany;[7]Shanghai Inst Pollut Control & Ecol Secur, Shanghai 200092, Peoples R China

年份：2024

卷号：51

起止页码：1400

外文期刊名：INTERNATIONAL JOURNAL OF HYDROGEN ENERGY

收录：;EI(收录号：20234114846125);WOS:【SCI-EXPANDED(收录号:WOS:001139617700001)】；

基金：This work was supported by the National Key Research and Development Program of China (2022YFB3803600) , the National Natural Science Foundation of China (21972040, 22006038) , the Innovation Program of Shanghai Municipal Education Commission (2021-01-07-00-02-E00106) , the Science and Technology Commission of Shanghai Municipality (20DZ2250400, 22230780200) , and the Program of Introducing Talents of Discipline to Universities (B20031) , and Fundamental Research Funds for the Cornell University (222201717003) .

语种：英文

外文关键词：2D MXene; Visible light; Hydrogen evolution; Dye degradation; Cocatalysts; Photocatalyst

摘要：Photocatalytic H2 evolution and dye degradation using a semiconductor photocatalytic system are considered to be the most appropriate techniques for solving current energy crises and environmental issues. However, the effective separation and utilization of photoexcited charge carriers is the bottleneck of a photocatalytic system. To tackle this problem, we report an efficient photocatalytic system of CdS nanowires (NWs) electro-statically self-assemble on the Nb2C MXene cocatalyst. The synthesized CdS/Nb2C com-posites indicate that the CdS NWs are homogeneous and uniformly distributed on the accordion type Nb2C MXene cocatalyst, which was confirmed via different characterization techniques such as SEM, TEM, HRTEM, and elemental mapping. Furthermore, the elec-trochemistry analysis, PL, TRPL, EPR, and UV DRS spectra indicate the synthesized CdS/ Nb2C composites exhibit appreciable enhancement in the separation of photoexcited charge carriers and transfer ability by inhibiting the annihilation factor and improving the light absorption. Therefore, the photocatalytic H2 evolution efficiency of the optimized CdS/Nb2C composite reveals 2.53 mmol g -1 h-1, which was 5.34 times superior to CdS NWs. Moreover, the optimized sample manifested efficient stability even after five consecutive cycles and has an apparent quantum efficiency (AQE) of 3.69% with monochromatic light at 420 nm. Furthermore, the optimized CdS/Nb2C composite also manifests superior perfor-mance for photocatalytic degradation of Rhodamine B (RhB), which was a 99% degradation of RhB under light illumination for 20 min, much higher than pristine CdS NWs. This study shows that Nb2C MXene can be used as a potential noble metal free cocatalyst in a photocatalytic system to overcome environmental and energy crises. (c) 2023 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved.