This paper was focused on the principle of securing highly effective water reducing agent with the mixture of industrial naphthalene and crude methyl naphthalene.The optimum conditions of the process was experimentall...This paper was focused on the principle of securing highly effective water reducing agent with the mixture of industrial naphthalene and crude methyl naphthalene.The optimum conditions of the process was experimentally investigatid to give optimal mass ratio of industrial naphthalene and crude methyl naphthalene and make the characteristic criteria of the high quality water reducing agent produced reached the national standard.This process is of advantages of low cost and low energy consumption resulting in high ranke water reducing agent.展开更多
This article describs that criteria of chioce of building material have to cope with environmental protection by taking the view point of green chemistry,so as to be compatible with high quality of human life.It shoul...This article describs that criteria of chioce of building material have to cope with environmental protection by taking the view point of green chemistry,so as to be compatible with high quality of human life.It should likewise make the material meet the demand of superior properties for construction.In the mean time,It should satisfy the utility function.In concluding,the authors,based on green chemistry stress that the choice of environmentally benign material is of superim importance for the sustainable development of ecnomics and social efficicy.展开更多
采用溶胶-凝胶法制备镱镧共掺杂二氧化钛光催化剂Yb-La/TiO_2,在紫外光照射下,以罗丹明B作为目标降解染料,考察催化剂的光催化性能。结果表明,制备Yb-La/TiO_2光催化剂的最佳条件为:n(La)∶n(Yb)∶n(Ti)=1.2∶1.0∶100,钛酸丁酯用量10 m...采用溶胶-凝胶法制备镱镧共掺杂二氧化钛光催化剂Yb-La/TiO_2,在紫外光照射下,以罗丹明B作为目标降解染料,考察催化剂的光催化性能。结果表明,制备Yb-La/TiO_2光催化剂的最佳条件为:n(La)∶n(Yb)∶n(Ti)=1.2∶1.0∶100,钛酸丁酯用量10 m L,无水乙醇用量50 m L,聚乙二醇用量0.4 g,冰醋酸用量2 m L,pH=2.3,陈化4天,150℃干燥24 h,550℃焙烧2 h。此条件下制备的Yb-La/TiO_2光催化剂对罗丹明B的降解率达93.37%,重复使用3次后,降解率仍高于80%。展开更多
文摘This paper was focused on the principle of securing highly effective water reducing agent with the mixture of industrial naphthalene and crude methyl naphthalene.The optimum conditions of the process was experimentally investigatid to give optimal mass ratio of industrial naphthalene and crude methyl naphthalene and make the characteristic criteria of the high quality water reducing agent produced reached the national standard.This process is of advantages of low cost and low energy consumption resulting in high ranke water reducing agent.
文摘This article describs that criteria of chioce of building material have to cope with environmental protection by taking the view point of green chemistry,so as to be compatible with high quality of human life.It should likewise make the material meet the demand of superior properties for construction.In the mean time,It should satisfy the utility function.In concluding,the authors,based on green chemistry stress that the choice of environmentally benign material is of superim importance for the sustainable development of ecnomics and social efficicy.
文摘采用溶胶-凝胶法制备镱镧共掺杂二氧化钛光催化剂Yb-La/TiO_2,在紫外光照射下,以罗丹明B作为目标降解染料,考察催化剂的光催化性能。结果表明,制备Yb-La/TiO_2光催化剂的最佳条件为:n(La)∶n(Yb)∶n(Ti)=1.2∶1.0∶100,钛酸丁酯用量10 m L,无水乙醇用量50 m L,聚乙二醇用量0.4 g,冰醋酸用量2 m L,pH=2.3,陈化4天,150℃干燥24 h,550℃焙烧2 h。此条件下制备的Yb-La/TiO_2光催化剂对罗丹明B的降解率达93.37%,重复使用3次后,降解率仍高于80%。
