<h1 style="font-size:24px;color:#333333;font-weight:normal;vertical-align:middle;font-family:"text-align:center;background-color:#FFFFFF;"> C掺杂TiO<span style="font-size:18px;line-height:0;vertical-align:baseline;">2</span>纳米管阵列的制备及光催化降解甲基橙研究 </h1>