请帮忙修改下存在的语法错误（时间有点急,最好是今天回答）

题目

请帮忙修改下存在的语法错误（时间有点急,最好是今天回答）
Since twenty-first
Century,Scientific research
workers study on Photocatalytic Performance of entering a new era,The
emergence of complex caused more and more attention from researchers.In this paper,
the sulfur/molybdenum disulfide compounds is one of them,Based on Na₂MoO₄•2H₂o and C₂H₅NS.As a raw material,by the
method of solvent thermal synthesis,Without any surfactant or capping additive
prepared under the condition of the sulfur / molybdenum disulfide
compound.After UV-Vis diffuse reflectance (DRS),transmission electron
microscope (TEM),fluorescence spectroscopy (PL),X ray powder diffraction
(XRD) ,X ray photoelectron spectroscopy (XPS) and other methods to characterize
the sulfur/molybdenum disulfide compound..methylene blue (MB) for the
degradation of the object studied by UV and visible light degradation activity
of sulfur/mol

答案

问题太多了了,你不如把中文写出来我帮你翻译.
翻译如下,请审阅.Since entering the 21 Century,the research of scientific researchers on photocatalytic performance has entering a new era,the emergence of double compounds attracts the attention from more and more researchers.The sulfur/molybdenum disulfide double compound introduced in this paper is one of them.It uses Na2MoO4•2H2o and C2H5NS as the raw materials,and applies solvent thermal synthesis method to prepare sulfur/molybdenum disulfide double compound under the condition without adding any surfactant or end capping reagent.The prepared sulfur/molybdenum disulfide double compound is characterized by various methods,such as UV-Vis diffuse reflectance (DRS),transmission electron microscope (TEM),fluorescence spectroscopy (PL),X ray powder diffraction(XRD) ,X ray photoelectron spectroscopy (XPS) ,etc.Furthermore,the UV and visible light degradation activity of the sulfur/molybdenum disulfide double compound is studied taking methylene blue (MB) as the degradation object.The results show that,compared with the pure sulfur,sulfur/molybdenum disulfide double compound exhibits better UV and visible light MB degradation activity.