Eco-efficiency of removal benzene using TiO2/PLA-composite film by photocatalytic oxidation process
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Abstract
Eco-efficiency assessment in air pollution treatment by photocatalytic oxidation contributes to the application of effective air control pollution. The purpose of this research is to study eco-efficiency assessment of removal efficiency of benzene by photolysis and photocatalytic oxidation using 5%TiO2/PLA-composite film which synthesized by blown film technique. The result from SEM showed well dispersion of TiO2 on film. UV-VIS showed the band gap is 3.22 eV, band gap of anatase TiO2. ATR-FTIR showed anatase TiO2 and PLA in the film. The result showed removal efficiency of benzene by photocatalytic oxidation and photolysis within 24 hours of reaction time are 44% and 9%, respectively. Benzene can be degraded to CO2 and H2O by photocatalytic oxidation and photolysis, was following the first order kinetic. The removal rate constants (k) were 0.0188 and 0.0133, respectively. The eco-efficiency was 0.346 and 0.007, respectively. In summary, the photocatalytic oxidation using 5%TiO2/PLA-composite film is suitable for removal benzene and high eco-efficiency.
Article Details
วารสารวิศวกรรมฟาร์มและเทคโนโลยีควบคุมอัตโนมัติ (FEAT Journal) มีกําหนดออกเป็นราย 6 เดือน คือ มกราคม - มิถุนายน และกรกฎาคม - ธันวาคม ของทุกปี จัดพิมพ์โดยกลุ่มวิจัยวิศวกรรมฟาร์มและเทคโนโลยีควบคุมอัตโนมัติ คณะวิศวกรรมศาสตร์มหาวิทยาลัยขอนแก่น เพื่อเป็นการส่งเสริมและเผยแพร่ความรู้ ผลงานทางวิชาการ งานวิจัยทางด้านวิศวกรรมศาสตร์และเทคโนโลยีพร้อมทั้งยังจัดส่ง เผยแพร่ตามสถาบันการศึกษาต่างๆ ในประเทศด้วย บทความที่ตีพิมพ์ลงในวารสาร FEAT ทุกบทความนั้นจะต้องผ่านความเห็นชอบจากผู้ทรงคุณวุฒิในสาขาที่เกี่ยวข้องและสงวนสิทธิ์ ตาม พ.ร.บ. ลิขสิทธิ์ พ.ศ. 2535
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