Synthesis and Catalytic Performance of a New V-doped CeO_(2)-supported Alkali-activated-steel-slag-based Photocatalyst  

作　　者：KANG Le DU Huiling DENG Jun JING Xinrui ZHANG Sen ZNANG Yaojun 康乐;DU Huiling;DENG Jun;JING Xinrui;ZHANG Sen;ZNANG Yaojun(College of Materials Science and Engineering,Xi'an University of Science and Technology,Xi'an 710054,China;College of Safety Science and Engineering,Xi'an University of Science and Technology,Xi'an 710054,China;College of Materials and Mineral Resources,Xi'an University of Architecture and Technology,Xi'an 710055,China)

机构地区：[1]College of Materials Science and Engineering,Xi'an University of Science and Technology,Xi'an 710054,China [2]College of Safety Science and Engineering,Xi'an University of Science and Technology,Xi'an 710054,China [3]College of Materials and Mineral Resources,Xi'an University of Architecture and Technology,Xi'an 710055,China

出　　处：《Journal of Wuhan University of Technology(Materials Science)》2021年第2期209-214,共6页武汉理工大学学报（材料科学英文版）

基　　金：Funded by the National Natural Science Foundation of China(No.51372197);the Basic Research Plan of Natural Science of Shaanxi Province(No.2020JQ-754);the Key Innovation Team of Shaanxi Province(No.2014KCT-04);the Special Project of Shaanxi Province(No.19JK0490);the Construction and Promotion of Highlevel Achievements in Material Science and Engineering Discipline of Xi’an University of Science and Technology(No.2040519061);the Study on Preparation and Properties of New Solid-wastebased Cementitious Materials(No.6000190120);the Xi’an University of Science and Technology Doctoral Start-up Project(No.2018QDJ011)。

摘　　要：A novel V-doped CeO_(2)-supported alkali-activated-steel-slag-based catalyst(V-CeO_(2)/AC)for photocatalytic decomposition of water to hydrogen was prepared via co-impregnation method.The chemical composition,mineral phase,morphology,and optical performances of the synthesized catalyst samples were characterized by XRF,XRD,SEM,UV-Vis DRS,and so on.XRD and SEM results show that calcium silicate hydrate(Ca1.5SiO3.5·xH2O)mineral phase is formed in the carrier sample,and the prepared catalyst specimens are made up of approximately 50 nm particles.After 6 hours of xenon lamp irradiation,the catalyst supported on V-doped 8wt%CeO_(2) exhibits the highest photocatalytic hydrogen production activity(8292μmol/g),which is attributed to the interaction between the V-doped CeO_(2) active components and FeO existed in catalyst carrier.A possible photocatalytic decomposition of water for hydrogen production mechanism over the V-8CeO_(2)/AC catalyst was proposed.

关 键 词：V-doped CeO2 alkali-activated-steel-slag-based catalyst photocatalysis water splitting hydrogen production 

分 类 号：TQ116.2[化学工程—无机化工] O643.36[理学—物理化学] O644.1[理学—化学]