在科技的迅速发展下,甲醛成为了一大污染物。二氧化钛光催化剂因其化学稳定性好、无毒、成本低等优点而引起了人们的关注。在甲醛处理中二氧化钛的应用也成为了一个研究热点。利用钛酸四丁酯(C 16 H 36 O 4Ti),表面活性剂选用二乙醇胺(C...在科技的迅速发展下,甲醛成为了一大污染物。二氧化钛光催化剂因其化学稳定性好、无毒、成本低等优点而引起了人们的关注。在甲醛处理中二氧化钛的应用也成为了一个研究热点。利用钛酸四丁酯(C 16 H 36 O 4Ti),表面活性剂选用二乙醇胺(C 4H 11 NO 2),通过水热法来制备二氧化钛纳米晶体。为确定制备的最佳条件,改变其反应温度,时间,PH。再测定TiO 2催化剂在不同波长下降解甲醛的效率。展开更多
The Joy Luck Club is a masterpiece written by Amy Tan, a famous Chinese-American writer who boasts rich writing materials and vivid language thanks to her double identity and unique perspectives. This paper argues tha...The Joy Luck Club is a masterpiece written by Amy Tan, a famous Chinese-American writer who boasts rich writing materials and vivid language thanks to her double identity and unique perspectives. This paper argues that the collision of two cul?tures is reflected not only in conflicts behind mothers and daughters but also in different etiquettes and conjugal relationships. Ex?patiating about them, we can discover large differences in parenting between the east and the west. For all the contradictions be?tween distinct minds running through the whole novel, we shouldn't neglect the potential tend of cultural integration. Reading this novel is a process of revisiting advantages and disadvantages of both cultures, especially in terms of parenting and education.展开更多
文摘在科技的迅速发展下,甲醛成为了一大污染物。二氧化钛光催化剂因其化学稳定性好、无毒、成本低等优点而引起了人们的关注。在甲醛处理中二氧化钛的应用也成为了一个研究热点。利用钛酸四丁酯(C 16 H 36 O 4Ti),表面活性剂选用二乙醇胺(C 4H 11 NO 2),通过水热法来制备二氧化钛纳米晶体。为确定制备的最佳条件,改变其反应温度,时间,PH。再测定TiO 2催化剂在不同波长下降解甲醛的效率。
文摘The Joy Luck Club is a masterpiece written by Amy Tan, a famous Chinese-American writer who boasts rich writing materials and vivid language thanks to her double identity and unique perspectives. This paper argues that the collision of two cul?tures is reflected not only in conflicts behind mothers and daughters but also in different etiquettes and conjugal relationships. Ex?patiating about them, we can discover large differences in parenting between the east and the west. For all the contradictions be?tween distinct minds running through the whole novel, we shouldn't neglect the potential tend of cultural integration. Reading this novel is a process of revisiting advantages and disadvantages of both cultures, especially in terms of parenting and education.
