应用化工
應用化工
응용화공
APPLIED CHEMICAL INDUSTRY
2009年
12期
1777-1779
,共3页
Zn~(2+)改性TiO_2%苯酚废水%光催化
Zn~(2+)改性TiO_2%苯酚廢水%光催化
Zn~(2+)개성TiO_2%분분폐수%광최화
Zn~(2+)-doped TiO_2%phenol wastewater%photocatalytic
采用溶胶-凝胶-浸渍法对二氧化钛进行Zn~(2+)改性,并以苯酚废水为降解模型反应物,研究了Zn~(2+)改性TiO_2的光催化活性.结果表明,Zn~(2+)改性能够提高二氧化钛的光催化活性,当Zn~(2+)掺杂量为2.0%(质量百分比),煅烧温度为600 ℃,催化活性最好,当催化剂的投加量为3.0 g/L,通气量为600 mL/min,pH值为3.3时,对苯酚废水溶液紫外灯光催化30 min的降解率可达到98.2%.
採用溶膠-凝膠-浸漬法對二氧化鈦進行Zn~(2+)改性,併以苯酚廢水為降解模型反應物,研究瞭Zn~(2+)改性TiO_2的光催化活性.結果錶明,Zn~(2+)改性能夠提高二氧化鈦的光催化活性,噹Zn~(2+)摻雜量為2.0%(質量百分比),煅燒溫度為600 ℃,催化活性最好,噹催化劑的投加量為3.0 g/L,通氣量為600 mL/min,pH值為3.3時,對苯酚廢水溶液紫外燈光催化30 min的降解率可達到98.2%.
채용용효-응효-침지법대이양화태진행Zn~(2+)개성,병이분분폐수위강해모형반응물,연구료Zn~(2+)개성TiO_2적광최화활성.결과표명,Zn~(2+)개성능구제고이양화태적광최화활성,당Zn~(2+)참잡량위2.0%(질량백분비),단소온도위600 ℃,최화활성최호,당최화제적투가량위3.0 g/L,통기량위600 mL/min,pH치위3.3시,대분분폐수용액자외등광최화30 min적강해솔가체도98.2%.
Zn~(2+)-doped TiO_2 coupled photocatalyst was prepared by sol-gel-dipping method.Being a model reaction,the photocatalytic degradation of phenol wastewater was investigated in Zn~(2+)-doped TiO_2 powder suspension by UV-lamp.The results showed that the addition of Zn~(2+) to TiO_2 enhanced its photocatalytic activity, and the optimum dipped content of Zn~(2+) was 2.0%,the optimum calcination temperature was 600 ℃;under the condition of amount of photocatalyst 3.0 g/L,initial pH 3.3,air flow 600 mL/min,the degradation rate of phenol wastewater was 98.2% by 20 W UV-lamp irradiated 30 min.
