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/molybdenum disulfide complexes.The results show that,copared with
the pure sulfur ,sulfur / molybdenum  complex has better
ultraviolet and  visible light activity of  MB
degradation.
好的，不要用翻译软件啊，我就用这个，
21世纪以来，科研工作者对光催化性能方面的研究进入一个新时代，复合物的出现引起了越来越多科研人员的关注。本文介绍的硫/二硫化钼复合物就是其中一种，以Na2MoO4•2H2O和C2H5NS为原料，采用溶剂热合成的方法，在不添加任何表面活性剂或封端剂条件下制备出了硫/二硫化钼复合物。经过紫外可见漫反射（DRS）、透射电子显微镜图像（TEM）、荧光光谱（PL）、X射线粉末衍射仪（XRD）、X射线光电子能谱仪（XPS）等多种方法对硫/二硫化钼复合物进行表征。以亚甲基蓝（MB）为降解对象，研究硫/二硫化钼复合物的紫外及可见光降解活性。结果表明，与纯硫相比，硫/二硫化钼复具有更好的紫外及可见光MB降解活性。