摘要
通过在前驱体CH4NO2中加入不同摩尔比的NH4HCO3,经过高温煅烧制备多孔g-C_(3)N_(4),X射线衍射光谱(XRD)和扫描电子显微镜(SEM)表征显示,多孔g-C_(3)N_(4)微观形貌呈不规则锯齿多孔状。以罗丹明B(RhB)作为目标污染物,重点考察了溶液pH值和RhB质量浓度对多孔g-C_(3)N_(4)光催化RhB降解率的影响。结果表明,当pH=1,RhB溶液质量浓度为10 mg·L^(-1),多孔g-C_(3)N_(4)(n(CH4NO2)∶n(NH4HCO3)=1.0∶0.4)对RhB溶液的光催化降解率最高,1.0 h可达到99.76%。
Porous g-C_(3)N_(4) was produced by adding NH 4HCO 3 in different molar ratios to the precursor CH 4NO 2 and calcining it at high temperatures.The microscopic morphology of porous g-C_(3)N_(4) was irregularly saw-tooth porous,according to X-ray diffraction spectroscopy(XRD)and scanning electron microscopy(SEM)characterization.The effects of solution pH and RhB mass concentration on the photocatalytic RhB degradation rate of porous g-C_(3)N_(4) were investigated using rhodamine B(RhB)as the target pollutant.The findings revealed that porous g-C_(3)N_(4)(n(CH 4NO 2)∶n(NH 4HCO 3)=1.0∶0.4)at pH=1 and RhB mass concentration of 10 mg·L^(-1) obtained the maximum photocatalytic degradation rate of RhB solution,reaching 99.76%at 1.0 h.
作者
马国峰
祁岚钰
关振声
MA Guofeng;QI Lanyu;GUAN Zhensheng(Liaoning Province Key Laboratory for Advanced Materials Preparation Technology,Shenyang University,Shenyang 110044,China)
出处
《沈阳大学学报（自然科学版）》
CAS
2023年第2期91-98,共8页
Journal of Shenyang University：Natural Science
基金
辽宁省高等学校创新人才支持计划(2020-42)
沈阳市科技攻关项目(20-202-1-12)。
