安徽工程大学学报
安徽工程大學學報
안휘공정대학학보
JOURNAL OF ANHUI UNIVERSITY OF TECHNOLOGY AND SCIENCE(NATURAL SCIENCE)
2012年
2期
20-22,35
,共4页
纳米银%偕胺肟纤维%二甲酚橙%光催化
納米銀%偕胺肟纖維%二甲酚橙%光催化
납미은%해알우섬유%이갑분등%광최화
nano-silver%amidoxime fiber%xylenol orange%photo-catalysis
以偕胺肟纤维(AOCF)为基体,与Ag+通过配位一还原法制得纳米银/偕胺肟纤维(Ag/AOCF).对催化剂进行SEM表征.以太阳光下对二甲酚橙的催化降解,考察了制备、实验条件对催化剂的光催化性能的影响.实验结果表明,在硝酸银浓度为4.0×10-3mol/L、配位反应时间为40min、pH-6的制备条件下制备的催化剂对二甲酚橙的光催化降解效率最佳,当二甲酚橙溶液pH=7、太阳光光源、催化剂用量为1.6g/L时催化降解二甲酚橙,降解效率能达到99.7%,且催化剂在重复使用了8次后,其对二甲酚橙的光催化降解效率仍能保持在80%以上.
以偕胺肟纖維(AOCF)為基體,與Ag+通過配位一還原法製得納米銀/偕胺肟纖維(Ag/AOCF).對催化劑進行SEM錶徵.以太暘光下對二甲酚橙的催化降解,攷察瞭製備、實驗條件對催化劑的光催化性能的影響.實驗結果錶明,在硝痠銀濃度為4.0×10-3mol/L、配位反應時間為40min、pH-6的製備條件下製備的催化劑對二甲酚橙的光催化降解效率最佳,噹二甲酚橙溶液pH=7、太暘光光源、催化劑用量為1.6g/L時催化降解二甲酚橙,降解效率能達到99.7%,且催化劑在重複使用瞭8次後,其對二甲酚橙的光催化降解效率仍能保持在80%以上.
이해알우섬유(AOCF)위기체,여Ag+통과배위일환원법제득납미은/해알우섬유(Ag/AOCF).대최화제진행SEM표정.이태양광하대이갑분등적최화강해,고찰료제비、실험조건대최화제적광최화성능적영향.실험결과표명,재초산은농도위4.0×10-3mol/L、배위반응시간위40min、pH-6적제비조건하제비적최화제대이갑분등적광최화강해효솔최가,당이갑분등용액pH=7、태양광광원、최화제용량위1.6g/L시최화강해이갑분등,강해효솔능체도99.7%,차최화제재중복사용료8차후,기대이갑분등적광최화강해효솔잉능보지재80%이상.
The nano-silver on amidoxime fiber was successfully prepared by the Ag+ with amidoxime fiber through coordination-reduction method. It was characterized by SEM. The effect of preparation and experiment conditions on photocatalytic activity was evaluated by degradation of xylenol orange solution under the sun light. The experimental results indicate that the best preparation conditions are as follows: c= 4.0×10-3 mol/L, t = 40 min, pH = 6 ; and the best experiment conditions: pH=7, m = 1.6 g/L, sunlight. The degradation rate of xylenol orange can reach 99.7% under the sun light. And the degradation efficiency of the catalyst still remains higher than 80% after it was used for 8 times.