制备了Fe(bpy)32+负载偕胺肟改性聚丙烯腈(PAN)纤维非均相Fenton催化剂,并通过配位作用将Cu2+引入该催化剂,制备了双金属负载改性PAN纤维催化剂(Cu Fe B-PAN)。并对该催化剂进行FTIR光谱、UV-Vis DRS谱图、光催化活性分析,探讨并分析了...制备了Fe(bpy)32+负载偕胺肟改性聚丙烯腈(PAN)纤维非均相Fenton催化剂,并通过配位作用将Cu2+引入该催化剂,制备了双金属负载改性PAN纤维催化剂(Cu Fe B-PAN)。并对该催化剂进行FTIR光谱、UV-Vis DRS谱图、光催化活性分析,探讨并分析了不同因素对光催化活性的影响。结果表明,Cu2+的引入拓宽了催化剂的可见光吸收范围;Cu2+的引入明显提高了催化剂的光催化活性,而且拓宽了p H适用范围;Cu2+的引入提高了催化剂对可见光的利用效率。展开更多
TiO_(2) nanoparticle is the most extensively used photocatalyst for photocatalytic paper.However,TiO_(2) nanoparticle is active only under UV light that accounted for less than 5%of the solar light energy.There is a n...TiO_(2) nanoparticle is the most extensively used photocatalyst for photocatalytic paper.However,TiO_(2) nanoparticle is active only under UV light that accounted for less than 5%of the solar light energy.There is a need to develop a photocatalytic paper with full spectrum photoactivity.Herein,a full spectrum photocatalytic paper was fabricated by incorporating cellulose fibers with graphite fibers which were pre-loaded with Ag_(2)O nanoparticles.X-ray diffraction(XRD)testing and scanning electron microscopy(SEM)examination confirmed the loading of the Ag_(2)O nanoparticles onto the graphite fibers.The photocatalytic activity of the paper was evaluated with the degradation of methyl orange(MO)under ultraviolet,visible or near-infrared light irradiation.It was found that the degradation rate of MO could reach 32%,19%and 19%under UV,visible and NIR light,respectively after 3 h of irradiation.Meanwhile,the photocatalytic paper was very stable and can be reused repeatedly.Antibacterial tests showed that the photocatalytic paper could inhibit Escherichia coli(E.coli)growth under office lighting condition.展开更多
文摘制备了Fe(bpy)32+负载偕胺肟改性聚丙烯腈(PAN)纤维非均相Fenton催化剂,并通过配位作用将Cu2+引入该催化剂,制备了双金属负载改性PAN纤维催化剂(Cu Fe B-PAN)。并对该催化剂进行FTIR光谱、UV-Vis DRS谱图、光催化活性分析,探讨并分析了不同因素对光催化活性的影响。结果表明,Cu2+的引入拓宽了催化剂的可见光吸收范围;Cu2+的引入明显提高了催化剂的光催化活性,而且拓宽了p H适用范围;Cu2+的引入提高了催化剂对可见光的利用效率。
基金The authors are grateful for the financial support from the National Natural Science Foundation of China(Grant No.31270625).
文摘TiO_(2) nanoparticle is the most extensively used photocatalyst for photocatalytic paper.However,TiO_(2) nanoparticle is active only under UV light that accounted for less than 5%of the solar light energy.There is a need to develop a photocatalytic paper with full spectrum photoactivity.Herein,a full spectrum photocatalytic paper was fabricated by incorporating cellulose fibers with graphite fibers which were pre-loaded with Ag_(2)O nanoparticles.X-ray diffraction(XRD)testing and scanning electron microscopy(SEM)examination confirmed the loading of the Ag_(2)O nanoparticles onto the graphite fibers.The photocatalytic activity of the paper was evaluated with the degradation of methyl orange(MO)under ultraviolet,visible or near-infrared light irradiation.It was found that the degradation rate of MO could reach 32%,19%and 19%under UV,visible and NIR light,respectively after 3 h of irradiation.Meanwhile,the photocatalytic paper was very stable and can be reused repeatedly.Antibacterial tests showed that the photocatalytic paper could inhibit Escherichia coli(E.coli)growth under office lighting condition.
