• 沒有找到結果。

第五章 結論與建議

5.2 建議事項

1. TiO2/CNTs 複合觸媒於本研究中,僅限於照射近紫外光之 MtBE 光催化 反應,未來可將其改質(如: CNTs 官能基之改質、改善複合方法),應 用於可見光光源之分解實驗,以使光催化技術實行更具實用性。

2. 奈米碳管添加為本研究中複合觸媒促使光催化效能提升因素之一,但 主要反應機制目前僅能利用反應之中間產物推測,後續利用表面特性 鑑定(如:UV via、FTIR 等),或是自由基之量測,加以確認 CNTs 於 光催化反應中所扮演之角色。

3. MtBE 光催化反應雖已初步鑑定中間產物,然而完整之分解產物之鑑定 與量化,及分解路徑,仍須更進一步加以確認。

4. 利用動力模式分析之方式,探討水氣濃度、溫度於光催化反應下之影 響,以建議後續研究的重點。

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附錄 A

MtBE 反應物與各產物之檢量線

Peak area

2.0e+4 4.0e+4 6.0e+4 8.0e+4 1.0e+5 1.2e+5 1.4e+5 1.6e+5 1.8e+5 2.0e+5 2.2e+5

MT BE conc entr at ion ( % )

0 5 10 15 20 25 30

y = 0.001x + 2.3542 R

2

= 0.9995

圖A.1 MtBE 檢量線

Peak area

0 2e+4 4e+4 6e+4 8e+4 1e+5

A c etone concentrat ion (% )

0 5 10 15 20 25 30

y = 0.0027x + 4.6758

R

2

= 0.9996

Peak area

10000 20000 30000 40000 50000 60000 70000

T B A concentr ation (%)

0 5 10 15 20 25 30

y = 0.0035x - 1.5635 R

2

= 0.9984

圖A.3 TBA 檢量線

Peak area

0 10000 20000 30000 40000 50000 60000

TB F concentration (% )

0 5 10 15 20 25 30

y = 0.0004x + 0.3151

R

2

= 0.9997

附錄 B

MtBE 與中間產物之圖譜

圖 B.1 MtBE 與中間產物之圖譜

附錄 C

各操作條件下之實驗值

附表 C.1 密閉實驗測試

附表 C.2 反應系統吸附實驗

Time Concentration(μM) (TiO2/CNTs=20)

Concentration (μM) Pure TiO2

表C.3 各操作條件下之光催化實驗結果

Time (min) Concentration(μM) Time(min) Concentration(μM)

Test 1 Test 2

Test 11 Test 12

Test 23 Test 24

附表C.4 產物分析

附表C.5 光催化分解產物選擇性

Acetone TBA Time(min) Pure TiO2 TiO2/CNTs=100 TiO2/CNTs=20 Time(min) Pure TiO2 TiO2/CNTs=100 TiO2/CNTs=20

0 0.000 0.000 0.000 0 0.000 0.000 0.000